Great Falls, VA Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Great Falls, VA.

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Current Conditions — Great Falls, VA

LEESBURG/GODFREY (KJYO)

Clear

51.8 F
Humidity:58%
Wind Speed: 3.4 mph
Barometer:30.15 in
Dewpoint:37.4 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 22 2026, 12:55 AM EDT
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5-Day Forecast — Great Falls, VA

Wednesday

High 73 °F
Chance of T-storms
Wednesday
Night
Low 55 °F
Mostly Clear
Thursday

High 80 °F
Mostly Sunny
Thursday
Night
Low 55 °F
Partly Cloudy
Friday

High 77 °F
Chance of T-storms
Friday
Night
Low 53 °F
Chance of Rain
Saturday

High 64 °F
T-storms
Saturday
Night
Low 48 °F
Rain
Sunday

High 62 °F
Rain Showers Likely

Detailed Forecast — Great Falls, VA

Wednesday
Chance of Thunderstorms. High near 73°F. Wind 7 to 10 mph, with gusts as high as 17 mph.
Wednesday Night
Mostly Clear. Low around 55°F. Wind 3 to 5 mph, with gusts as high as 10 mph.
Thursday
Mostly Sunny. High near 80°F. Wind 3 to 6 mph, with gusts as high as 12 mph.
Thursday Night
Partly Cloudy. Low around 55°F. Wind 2 to 3 mph, with gusts as high as 8 mph.
Friday
Chance of Thunderstorms. High near 77°F. Wind 3 to 6 mph, with gusts as high as 10 mph.
Friday Night
Chance of Rain. Low around 53°F. Wind around 6 mph, with gusts as high as 12 mph.
Saturday
Thunderstorms. High near 64°F. Wind 8 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Rain. Low around 48°F. Wind 7 to 10 mph, with gusts as high as 17 mph.
Sunday
Rain Showers Likely. High near 62°F. Wind around 8 mph, with gusts as high as 15 mph.
Sunday Night
Chance of Rain. Low around 46°F. Wind 3 to 6 mph, with gusts as high as 12 mph.
Monday
Chance of Rain Showers. High near 68°F. Wind 5 to 7 mph, with gusts as high as 13 mph.
Monday Night
Chance of Rain. Low around 50°F. Wind 6 to 7 mph, with gusts as high as 13 mph.
Tuesday
Thunderstorms Likely. High near 69°F. Wind 8 to 9 mph, with gusts as high as 18 mph.
VA Radar
Current Radar • VA
Day 1 Outlook • April 22, 2026

Observation History — Great Falls, VA

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
12:55 AM EDT 3.4 10.00 Clear -- 51.8 37.4 58% NA NA 30.15 1021.0
12:35 AM EDT S 3.4 10.00 Clear -- 51.8 37.4 58% NA NA 30.15 1021.0
12:15 AM EDT 3.4 10.00 Clear -- 51.8 37.4 58% NA NA 30.15 1021.0
11:55 PM EDT SE 3.4 10.00 Clear -- 53.6 37.4 54% NA NA 30.16 1021.3
11:35 PM EDT SE 4.7 10.00 Clear -- 53.6 37.4 54% NA NA 30.16 1021.3
11:15 PM EDT SE 4.7 10.00 Clear -- 53.6 37.4 54% NA NA 30.17 1021.7
10:55 PM EDT SE 5.8 10.00 Clear -- 53.6 37.4 54% NA NA 30.17 1021.7
10:35 PM EDT 8.1 10.00 Clear -- 53.6 37.4 54% NA NA 30.18 1022.0
10:15 PM EDT 6.9 10.00 Clear -- 55.4 35.6 47% NA NA 30.18 1022.0
09:55 PM EDT 9.2 10.00 Clear -- 55.4 35.6 47% NA NA 30.18 1022.0
09:35 PM EDT SE 11.4 10.00 Clear -- 57.2 32.0 38% NA NA 30.18 1022.0
09:15 PM EDT 6.9 10.00 Clear -- 59.0 32.0 36% NA NA 30.18 1022.0
08:55 PM EDT 8.1 10.00 Clear -- 59.0 32.0 36% NA NA 30.17 1021.7
08:35 PM EDT 9.2 10.00 Clear -- 59.0 32.0 36% NA NA 30.16 1021.3
08:15 PM EDT 9.2 10.00 Clear -- 60.8 32.0 34% NA NA 30.17 1021.7
07:55 PM EDT 8.1 10.00 Clear -- 60.8 32.0 34% NA NA 30.17 1021.7
07:35 PM EDT 5.8 G 9.2 10.00 Clear -- 60.8 32.0 34% NA NA 30.17 1021.7
07:15 PM EDT S 8.1 10.00 Clear -- 60.8 32.0 34% NA NA 30.17 1021.7
06:55 PM EDT S 13.9 10.00 Clear -- 62.6 32.0 32% NA NA 30.17 1021.7
06:35 PM EDT S 11.4 G 18.3 10.00 Clear -- 62.6 32.0 32% NA NA 30.17 1021.7
06:15 PM EDT S 12.8 G 18.3 10.00 Clear -- 62.6 32.0 32% NA NA 30.17 1021.7
05:55 PM EDT S 11.4 10.00 Clear -- 62.6 32.0 32% NA NA 30.17 1021.7
05:35 PM EDT S 10.3 G 19.7 10.00 Clear -- 62.6 32.0 32% NA NA 30.18 1022.0
05:15 PM EDT 12.8 G 17.2 10.00 Clear -- 62.6 32.0 32% NA NA 30.19 1022.4

Regional Weather Observation

LEESBURG/GODFREY (KJYO)

Clear
51.8 F

FREDERICK (KFDK)

Clear
47.5 F

MARTINSBURG (KMRB)

Clear
NULL F

NSF THURMONT (KRSP)

Clear
46.0 F

HAGERSTOWN (KHGR)

Clear
53.6 F

CARROLL CNTY (KDMW)

Clear
50.0 F
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